std::basic_istream::sentry

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C++ Standard Library
Language Utilities library Strings library Containers library Algorithms library Iterators library Numerics library Input/output library Localizations library Regular expressions library (C++11) Atomic operations library (C++11) Thread support library (C++11)
Input/output library
basic_streambuf basic_filebuf basic_stringbuf ios_base basic_ios basic_istream basic_ostream basic_iostream basic_ifstream basic_ofstream basic_fstream basic_istringstream basic_ostringstream basic_stringstream I/O manipulators C-style I/O
basic_istream::sentry
Functions sentry::sentry sentry::operator bool

Defined in header <istream>
class sentry;

This section is incomplete

[edit] Member functions

(constructor)	constructs the sentry object. All the preparation tasks are done here (public member function)
operator bool	checks if the preparation of the stream object was successful (public member function)